Distance from Starting Point of Spring (inches) 6 2 1 7 Weight on Spring (kilograms) Part A According to the graph, what is the constant of proportionality in kilograms per inch? (Note: This is also called the spring constant. The spring constant is determined by the spring's material and design.)
The constant of proportionality is the number of kilograms that will stretch the spring by 1 inch. When y = 1, x = 1/3, so the constant of proportionality in kilograms per inch is 1/3.